Do emojis show up as broken in Chromium, displaying as a black rectangle box, instead of the expected graphic?
Can you see these three emojis properly?
If you cannot see them as intended, then you need to install a package named noto-fonts-emoji which contains the Noto emoji fonts from Google.
Install it with the following command on Arch linux:
sudo pacman -S noto-fonts-emoji
Enjoy your new emojis! ?